OPNsense is a powerful firewall software package that can take your local area network (LAN) from zero to hero, replacing ISP-provided hardware with a custom device you have full control over. One advantage of replacing your ISP router with an OPNsense-powered firewall is the unlocking of many advanced features, many of which are often omitted from ISP router firmware. Here are some OPNsense features you’re likely not using that could massively improve your home network, some involving a single setting change.